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Mathematics 14 Online
OpenStudy (anonymous):

150/r = 600/r+150 Please help me out!! Thanks.

OpenStudy (across):

\[\frac{150}{r}=\frac{600}{r}+150\]\[\frac{150}{r}-\frac{600}{r}=150\]\[\frac{1}{r}(150-600)=150\]\[\frac{1}{r}(-450)=150\]\[\frac{1}{r}=-\frac{150}{450}\]\[r=-3\]

OpenStudy (anonymous):

no

OpenStudy (anonymous):

(r+150) is on bottom

OpenStudy (anonymous):

i got r= 50

OpenStudy (anonymous):

50 is wrong, i just tried it

OpenStudy (anonymous):

across is right! The answer is -3!!

OpenStudy (across):

Apparently, he meant\[\frac{150}{r}=\frac{600}{r+150}\]:/

OpenStudy (across):

In that case, you can try solving\[150(r+150)=600r.\]

OpenStudy (anonymous):

*she

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